Roller-bearing for mine-car wheels.



F. G. HOOKENSMTH. ROLLER BEARING POR MINE GAR WHEELS.

APPLIOATIOIW YILED 00.1217, 1911.

1,066,276, Fatenaed July l, 1913.

FiGJ. 77%;7-8-.1 *ifi WITNESSES INVENTGF? .inseam "man ,v sfrafrns rafranr onirica.

FRANKLIN c. HooKnNsMrrH, or rrrrrsnunon, rnnnsrtvamn, assitance' 'ro noon- ENsMrfrr-r WHEEL & MINE CAR contraria' or PENN seamen', rnnnssrrivenra, a

CORPORATION 0F PENNSYLVANIA.

ROLLER-BEARING To all whom imag concern:

Be it' known that I, FnANnLrN C. HOCKEN smrn, a resident of Pittsburgh, in thecounty of 'Allegheny and State of Pennsyl- 4vania, have invented cettain new and useful Improvements in Roller-Bearings for Mine- Car lVheels,- of which the following is a specification.

@ne purpose of the present invention is to so construct a roller bearing wheel for mine cars, etc.. that the oil is effectively confined within the roller space, there being practically no waste in either direction'along the axle. HeretOOre, roller bearings for such service have been ordinarily appliedlto what are known as cap wheels which incluse ther yextremity of the axle together with the device for confining the wheel on the axle. An objection to this type of wheel isthat the arleis hidden from View andit is difiieu'lt to inspect the bearing, and one result is that accidents frequently occur owing'to breaking or dislodgmeut of the wheel-securing device, it being usually impossible to' detect such dera'ngernent in advance of an accident.

-lVith the securingmeansopen to view any defect can be readily seen 'and remedied. The oil-confining means within the hub is einbodiedin washers of novel construction arranged within the bore of the wheel at opposite ends of the roller bearing, preventing escape of oil from either end of the hub. In the accompanying drawings, Figure 1 is a longitudinal section of a wheel hub constructed in accordance with the invention, the same being shown in connection with the usual bearing secured to the car Structure and through which the .axle extends as well as through the wheel. Figs. 2 and 3 are Vertical cross sections on lines 2-2 and 3-3, respectively, of Fig. l. Fig. 4 is a detail 'of the flanged washer.

` Referring to. the drawings, 2 designates thewheelhub from lwhich radiate spokes in usual manner. The wheel bore enlarged for a distance inwardly from the inner end of the hub as indicated at Il, this enlargement terminating in the abutment-forming shoulder 5 which separates the roller space; Ll from space 6 of smaller diameter, whilef adjacenr space 6 is part,7 ol ther hubv which has aworking fit on axle A, the extremity of the latter` projecting through the front end Qfjhe hub and formed with an opening to v specicauon of Letters Batam. v l

FOR MIHILGH, WHEELE.

Patented. July il, teil3.

Application inea october 17, 1911. serial no. 655,220.

receive acotter 8 of usual construction. A

metallicv Washer 9 is pressed into roller space 4; against abutment 5, this washer' being engaged by one end or the cage which confines the bearing rollers 25. lnclosing the rollers is the spring metal jacket or liningl0 which is split longitudinally at l0', Fig. 2, so that it may contract suciently to enter the borev and tightly tit and grip the saine. The roller bearing, including lining l0, is of familiar construction and need not be described in detail. l

The extremity of bore a at the inner end of the hub is' enlarged circumferentially at 4.

el', this enlargement extending inwardly beyond the extremity of lining l0, and fitting this enlargement is washer ll which is flanged on one side at ll with the flan e fitting enlargement 4, as in l. In the front end of the hub a Flexible gasket 12,

preferably of leather, ybears against the outer side of washer 9, gasket l2 being confined on the axle by the split spring ring 13.

Oil is admitted to the hub through the plugged inlet 14:, the hub `bore' being cored circunit'erentially at l5 to form an oil passage' with lining 10 provided with suitable openings 10" for passing the oil into the rollenconining .cavityd Axle A extends through the usual bearing i6, which may be secured to the car body in any suitable manner, the outer end of the bearing formed with the flanged enlargement 17 which embraces the inner end et the hub, felt or other suitable packing; being confined in said enlargement around. the periphery of the hub, shown. lhe inner extremity of ythe hub bears against the Washer 19.' This extrefhity of the hub usually wears away more or less, but owing Yto the clearance between washers 19 and 11 the latter is not subjected to this wear. lower portion of bearing` 16 is the usual cavity for confining packing material i6.

Washer 11 revents the escape of oil from the bottom o bore @the oil being pocketed therein until it is cfa depth almost sutiicient to reach axle A. before it can escape through the washer. And such oil'as may escape in this w, 1 ings ls 'and 18 which prevent abnormal waste, though maintaining'the several surfaces of bearing 16, washer 19, and the exis checked by washer 19 and pack-4 In the the front end of the hub gasket 12 forms practically a seal around the axle and prevents the escape of oil in that direction.

With a roller bearing car Wheel constructed as here shown the rollers are fully lubricated at all times without Wasting the oil, and the bearing surfaces and oil chamber are so inclosed as to effectively exclude coal dust and other foreign matter which causes with the intermediate portion adapted vt frictionally receive the bearing casing, rollers Within said casing, means for supplying oil to the rollers in rear of the plane of said abutment, and a washer at the bore enlargement at the inner extremity of the hub, the Washer being flanged peripherally to embrace the extremity of the roller casing with the flange entered between the casing/and the Wall of the bore, said washer' aiding in retaining the bearing in position, the outer end of the bore being of a size to rotatively fit on the axle, the outer face of the hub being substantially imperforate.

i.. The combination with an axle, of a Wheel hub having a bore through which the axle extends, the bore being enlarged at its inner end, a roller bearing casing insertible through said inner end, the outer end of the bore being contracted to form an abutment with the intermediate portion adapted to frietionally receive the bearing casing, rollers within said casing, means for Supplying oil to the rollers in rear of the plane of said abutment, a washer at the bore enlargement at the innerextremity of the hub, the Washer being .iianged peripherally to embrace the extremity of the roller casing with the flange entered between the easing and the Wall of the bore, said Washer aiding in retaining the bearing .in position, the outer end'of the bore being of a size to rotativelv fit "n the axle, the outer face of the'hub being substantially imperforate, the portion of the bore intermediate the abutment and the contracted outer end being of a size intermediate the sizes of the ents'of the bore, andan oil-stopping device within said intermediate bore portion.

3. In combination, a Wheel hub having its axle-receiving bore enlarged at its inner end to receive aroller bearing with the end .of the 'bore enlargement forming an abutment, a roller bearing casing fitting Within the enlargement and stopped by said abutment, rollers Within said easing, means for supplying oil to the rollers, and a peripheral flanged Washer through Whichl the axle is adapted to extend, said Washer fitting within the bore enlargement behind said casing With the flange of the Washer disposed toward said abutment and extending between the casinoand the wall of the bore.

4. n combination, a-shaft or axle, awheel Vhub having its axle-receiving bore enlarged at its inner end to receivea roller bearing with the end of the bore enlargement orml ing an abutment, the outer face of the hub surrounding the bore being substantially imperforate, the outer end of the bore having a size to rotatively fit on the shaft or axle, a roller bearing casing fitting Within the enlargement and stopped by said abutment, rollers Within said casing, means for supplying oil to the rollers, an oil confining Washer fitting within the bore enlargement'behind said casing and adapted to aid in retaining the latter in position against endwise movement, and means carried by the axle and into which the inneriend of the hub 'extends for closing such inner end, saidv means and hub being complementally formed to permit removal of the hub as a-unit Without affectin the position of said means.

in testimony whereof I aiiix my signature in presence of two witnesses.

FRANKLIN C. HOCKENSMITH.'

itnesses J. M. Nnsrr, F. E. GAITHER. 

